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47 lines
1.5 KiB
C++
47 lines
1.5 KiB
C++
#ifndef __FENNIX_KERNEL_IDT_H__
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#define __FENNIX_KERNEL_IDT_H__
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#include <types.h>
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namespace InterruptDescriptorTable
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{
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typedef enum _InterruptDescriptorTableFlags
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{
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FlagGate_TASK = 0b101,
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FlagGate_16BIT_INT = 0b110,
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FlagGate_16BIT_TRAP = 0b111,
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FlagGate_32BIT_INT = 0b1110,
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FlagGate_32BIT_TRAP = 0b1111,
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FlagGate_RING0 = 0b0,
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FlagGate_RING1 = 0b1,
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FlagGate_RING2 = 0b10,
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FlagGate_RING3 = 0b11,
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FlagGate_PRESENT = 0b1, // Not sure if this is correct.
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} InterruptDescriptorTableFlags;
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typedef struct _InterruptDescriptorTableEntry
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{
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uint64_t BaseLow : 16;
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uint64_t SegmentSelector : 16;
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uint64_t InterruptStackTable : 3;
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uint64_t Reserved1 : 5;
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InterruptDescriptorTableFlags Flags : 4;
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uint64_t Reserved2 : 1;
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uint64_t Ring : 2;
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uint64_t Present : 1;
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uint64_t BaseHigh : 48;
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uint64_t Reserved3 : 32;
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} __attribute__((packed)) InterruptDescriptorTableEntry;
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typedef struct _InterruptDescriptorTableDescriptor
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{
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uint16_t Length;
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InterruptDescriptorTableEntry *Entries;
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} __attribute__((packed)) InterruptDescriptorTableDescriptor;
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void SetEntry(uint8_t Index, void (*Base)(), InterruptDescriptorTableFlags Attribute, uint8_t InterruptStackTable, InterruptDescriptorTableFlags Ring, uint16_t SegmentSelector);
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void Init(int Core);
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}
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#endif // !__FENNIX_KERNEL_IDT_H__
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